[vpintheak]

Insane in the Membrane, its insane got no brain! To quote Cypress Hill.

[RightWhale]

Seems like they would need a hydrogen source at some point in the process.

[Analyzing Inconsistencies]

Couldn't we get SOOOO much more accomplished regarding Mars (etcetera) if only government space agencies such as NASA simply offered competitive prizes like the one Charles Lindberg won for crossing the Atlantic? NASA's allowed to propose competitive prizes (as Newt Gingrich advocates) but unlike DARPA, NASA conveniently won't jeopardize its bureaucrats' and pet contractors' sinecures (I mean "jobs") by offering them. For more on this statist scandal from the space program which has a larger budget than all the rest of the world's civilian space agencies COMBINED:

http://www.SpaceProjects.com/prizes

[Lazamataz]

The ideal technology for space travel would be simple, robust, reliable, lightweight, and volumetrically efficient. It would have no moving parts, which would make it less likely to break. It would be a passive technology, not requiring any energy from the outside. It would be small. It would be light. An ideal technology for space, says chemical engineer Doug Way, is the membrane.

Insane in the membrane.

Insane in the brain.